Remove an unneeded test.

llvm-svn: 48755
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 9feefb9..2229743 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -770,7 +770,7 @@
       SDOperand Ops[] = { N1, N0 };
       SDNode *CSENode = DAG.getNodeIfExists(N->getOpcode(), N->getVTList(),
                                             Ops, 2);
-      if (CSENode && CSENode->use_size() <= N->use_size())
+      if (CSENode)
         return SDOperand(CSENode, 0);
     }
   }